My father is 83 years old and has spent his life teaching by example.

我父亲今年83岁，他一生都在以自身来做榜样。

youdao

Few things are more difficult there than finding leaders with his humble demeanor and his preference for teaching by example.

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There seems to be no correlation between student perception of the effectiveness of teaching (as measured by RateMyProfessor.com) and faculty compensation, for example, but professors who teach a lot get paid somewhat more than those that do not.

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When teaching small children to read, for example, tightly scripted lessons, their exact content and timing honed by randomised trials, do best.

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